Difference between Antigen and Antibody (Antigen vs Antibody)

Antigenis
any foreign particle that elicits an immune response or that specifically binds
to an antibody or a T-cell receptor (often used as a synonym for immunogen).

Antibodies or immunoglobulinsare
glycoproteins consisting of identical heavy chains and 2 identical light chains
that recognizes a specific epitope on an antigen and facilitates elimination of
that antigen.